the hard, calcareous tissue, similar to but denser than bone, that forms the major portion of a tooth, surrounds the pulp cavity, and is situated beneath the enamel and cementum.
- Also den·tine [den-teen]. /ˈdɛn tin/.
- den·tin·al, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use dentin in a sentence
One, called MEP1a, plays a role in forming dentin, the layer of tissue surrounding the tooth’s pulp.Ivory poaching has triggered a surge in elephants born without tusks | Kate Baggaley | October 22, 2021 | Popular-Science
Still, it can easily be renewed, or if all the tin is removed we find the dentin hard and firm.
Nature will not restore the lost part, but will do the next best thing—solidify the dentin.
In some cases, under tin, the pulp gradually recedes, and the pulp-cavity is obliterated by secondary dentin.
The effect is to cause the surface exposed to dentin to oxidize more than tin would do alone; in that there is a benefit.
Scientific definitions for dentin
The main bony part of a tooth beneath the enamel, surrounding the pulp chamber and root canals.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Cultural definitions for dentin
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.